Why Configuration Management

This article describes the open source IMAP and POP3 server--dovecot on the Linux/unix class system platform, and its solution for caching (caching) problems when NFS is stored as storage--dovecot Director. You will see how to configure Dovecot Director and how Dovecot Director works. What & Why Dovecot dovecot the term ...

I am a person, in fact, everything is good, but sometimes it is too casual, and there are times to be compelled, such as yesterday in order to cope with those who did not complete the work of the situation, so I was stunned and pulled out a set of management documents, so the results of the vehicular people have no intention, 　　Put himself in the chant, so, please you must firmly remember that the old saying, "Medicine can not be disorderly to eat, words can not talk nonsense." Last night I stayed up for half an evening, just put Zhou two in one work instructions, originally I was going to see "Transformers", but finally, the film ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall WDCP is the Wdlinux Control panel abbreviation, is a set of PHP development Linux Server Management system as well as the virtual host management system,, aims at easy to use the Linux system as our website server, as well as usually to 　　Linux Server Common management operations, can be done in the background of WDCP. 　With WDCP, you can easily create Web sites, create FTP, create MySQL databases, and so on. ...

Pan Shanghai reported that "public offering" fund will become a new player in PE market. June 29, the Securities and Futures Commission convened a press briefing to solicit opinions from all sectors of the community on the draft pilot scheme for the management of specific client assets of the fund managers (hereinafter referred to as "the pilot Scheme").　　The direction of the bill is that the SFC intends to allow fund management companies to carry out special asset management operations through the establishment of professional subsidiaries, and to further relax controls. A week before the ventilation meeting, the SFC announced that it intends to allow future public offering funds to carry out a special asset management plan, investment in unlisted companies equity, creditor's rights ...

Today's demand for data centers is solid and effective, and this should be done first by "reasonable use". While idle resources are a waste of money for an environment. But if you fail to make a reasonable resource allocation to the frequently used data center, it will lead to a dangerous scene. A single hardware failure may cause other physical hosts to fail. The challenge for IT managers is to use and manage computing resources across the entire environment (usually including physical, virtual, and cloud resources). This article will discuss resource planning and problem mitigation as a means to achieve the goal of resource optimization. We will also ...

Introduction: Cloud computing provides a technical possibility for enterprise to implement flexible http://www.aliyun.com/zixun/aggregation/15818.html "> Application services, but it also poses great challenges to it operational management They are no longer a single storage, network, computing and other resources, but they need to effectively integrate these resources into the dynamic services available to end users, and ensure quality of service. This change will have a very far-reaching impact on the management of IT infrastructure. How to do the cloud ...

To complete this chapter, you can do the following: Describe why you want to differentiate between dynamic file system and static file system description/sbin,/usr,/stand,/etc,/dev,/var (operating system related directory) The main content description/opt,/etc/opt, and/var/ The main content of opt (application-related) uses find, and Whereis commands to locate files in the file system Introduction file system examples many system management tasks require http://www.aliyun.com/...

Remote invocation is the communication mechanism between system and process, and is the core technology of distributed system development. Remote invocation technology can form a group of computer systems into a network system, the external provision of the overall service, then this group of computer systems constitute a larger, more performance of the computer system. A general statement on the architecture design of the remote invocation service first, we need to understand the following questions: Why is a remote invocation service required in an application software service? What is the problem with the remote Invoke service that solves the software design? I have written an article on the design of distributed Web site architecture, ...

Multithreading is the problem that programmers often face in the interview, the level of mastery and understanding of multithreading concept is often used to measure a person's programming strength. Yes, ordinary multithreading is not easy, then when multithreading encounter "elephants" will produce what kind of sparks? 　　Here we share the Java thread Pool management and distributed Hadoop scheduling framework with 严澜, the Shanghai Creative Technology director. Usually the development of the thread is a thing, such as Tomcat in the servlet is the threads, no thread how we provide more ...

Now everyone is talking about big data, but in fact, much of the talk is too exaggerated. Employment data show that large numbers seem to be needed by corporate recruiters. However, more data suggest that companies do not know what to do with these big data professionals. However, more important than large data itself is the analysis and management of large data. This trend is allowing server Automation configuration system tools to emerge in large numbers. Puppet is the power behind the "DevOps" trend. As dice.com data shows, Puppet is a tidal wave ...